Carpet-sweeper.



G. A. SMITH. CARPET SWEEPER. APPLICATION FILED JAN. 7, 1909.

919,479, Patented Apr.27, 1909.

whwono STATES PATENT OFFICE.

cuRIsTorHEa A. SMITH, oF PHILDELPHIA, i' PENNSYLVANIA.

cA'nrET-swnnra'n,

speaacation of Lettera` Patent.

vmamma',.llpru 27, 1909.

Application med January 7, isos. serial No. 471,041.'

To `all whom. 'it may concern;

Bey it known that .I, CHRISTOPHER "`A.

SMITH, -a citizen of the 'United States, residwear of ,the brush, andhence lengthen the life and.'utility of the brush, as 1t `.enables thelatter to do effective sweeping afterdtl lias become'worn.' Y A- furtherobject is to provide an improved bearing for the ed ofthe brush, whlchcai" be adjusted vertically in the carpet sweeper frame, to so positionlthe brush when it -wea1s, that itwill firmly engage the 'floor' and doveffective work.

With these and other objects in view, the

-invention consists .in' `certain novel features of construction, andcombinations, and arrangement of parts as will be "more fullyhereinafter described and pointed out in the claim.

In the accompanying drawings Figure l,l is a view in end elevation of acarpet sweeper, illustrating my improvements. Fig. 2, is

an enlarged view in longitudinal section throughoneend of the brushand'itsjourual bearing. F 1g. 3, is a detail perspective view l ofa.f1an1e,. and.Fig. 4, is a perspective vie-w of a journal.lrepres'ents'the box of the carpet sweeper,

` having the ordinary handle 2, and 3 is an end fran1`e,which is securedto the box 17in anyl approved; manner, I and wheels 4 are mountedbetween the frame 3 and box l, as 1s customary incarpet sweepers ingeneral -"lh'e const-ructionof the' sweeper at'both ends is preciselyalike, and the following description `ofone end will apply alike toboth. vThe frame 3 'at its center is extended downwardly `as shown at 5,and made with 'a vertical s1ot6 tol receive the threaded smaller en d 7of a cylindrical journal '8o.

This 'threaded-portion 7 of the journal, is'v also passed through acentral opening in a cup bearing 9, and-hasjalug or key 15 projecting,through the bearing 9, and into slot 6, preventing rotary movement ofthe jour- I claim as new nalS and bearing '9; -A thumb nut 10 is screwedonto the journal and against the the journals -frame 3 to securelyclamfp h 1 rictional w ee against movement. The

portions 11 at the. ends i' ofthebrush are made with central 'bearing'vsockets` 12, linto which the journals 8 project, and',y

are also made with circular groove 13 `con centricv with the socket orrecess 12 to` receive -the cup bearing, hence. alfording ydouble`bearing at both ends of' the brush, which latter isgiven the referencenumeral 14. By -'reason of the construction above described, .if thesocket or recess 12 becomes worn,the cup bearing will prevent Wabbling,and viceversa, and this form of bearing also insures a lperfect holdofthe brush when -adjustedby`means of the thumb nutA 10'and journal v8as above explained'. j Various.'slight change mrghtbe made 1n thegeneralform and arrangementof parts described without; departing from myinkvention',.and hence I do not restrict myself to the precise detailsset forth,. but considerv myself'at liberty to makesuch changes and.

alterationsas fairly fall within the' spirit A and scope of myinvention.

Having thus described my invention what ters Patent is: .e In a carpetsweeper, the combinatlonwith an end frame having a Vertical slottherein,-

and a-rotary brush having `a central recess in its end, and a circulargroove 1n its end concentric with said recess, of a cup bearingprojecting into the circular groove, a jour.-

nal 'bearing projecting'into the central re- Y cess' and having arestricted screw threaded extension proj ectiug through anl opening finthe cup bearing, and through the slot in the frame, a lug or key on saidextension prof jecting through the cup therein and into and desire tosecure by Let-- the slot, preventing rotary movement ofv4 the journal, athumb nut on said extension securely clamping the frame between thethumb nut and the'cup bearing and-securely clamping the journal againstthe cup bearing.

V In testimony whereof I have signedmy name tol this specification inthe presence of two subscribing witnesses.

l CHais'roPHER Af. ,SMITH-.i

Witnesses: j

S. W. Fos'rnr, R. H. KRENKEL..

